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颗粒化序列间歇式活性污泥反应器工艺处理化粪池污水
引用本文:张洋,杨昌柱,濮文虹,刘宏波,毛羽飞.颗粒化序列间歇式活性污泥反应器工艺处理化粪池污水[J].环境污染与防治,2009,31(11).
作者姓名:张洋  杨昌柱  濮文虹  刘宏波  毛羽飞
作者单位:华中科技大学环境科学与工程学院,湖北,武汉,430074
摘    要:在序列间歇式活性污泥反应器(SBR)中成功培养出适应化粪池污水水质的好氧颗粒污泥.并将其应用于化粪池污水的处理.在好氧颗粒污泥培养的第15天左右,SBR中开始出现细小的颗粒,然后微生物在其上繁殖生长使颗粒逐渐增大而成熟;在第24天时,SBR中絮状活性污泥已基本实现了颗粒化.培养出的好氧颗粒污泥对化粪池污水有稳定的处理效果,在进水完全为化粪池污水时,COD、NH_4~+-N、TN的平均去除率分别为77%、61%、47%.但是,由于化粪池污水COD较低,因此无法维持较高的生物量,在后期的稳定运行过程中MLSS始终维持在2 500 mg/L左右.好氧颗粒污泥的同步硝化反硝化作用是其稳定脱氮的保证.

关 键 词:序列间歇式活性污泥反应器  好氧颗粒污泥  同步硝化反硝化  化粪池污水

Study on septic tank wastewater treatment in granular SBR
Zhang Yang,Yang Changzhu,Pu Wenhong,Liu Hongbo,Mao Yu fei.Study on septic tank wastewater treatment in granular SBR[J].Environmental Pollution & Control,2009,31(11).
Authors:Zhang Yang  Yang Changzhu  Pu Wenhong  Liu Hongbo  Mao Yu fei
Abstract:The aerobic granular sludge was cultivated in sequencing batch reactor (SBR) and acclimated with septic tank wastewater. The small granules were found after 15 d cultivation, and the granules became larger with mi-croorganism growing on its surface. The granulation process was almost completed after 24 d of cultivation. The aer-obic granular sludge had a perfect capability of septic tank wastewater disposal. The average removal rate of COD,NH+-N and TN were 77% ,61% and 47% respectively. Granular sludge in the stable running process had the MLSS of 2 500 mg/L for the lower COD contained septic tank wastewater could not sustain the higher biomass. Simultane-ous nitrification and denitrification ensured the aerobic granular sludge removing nitrogen stably.
Keywords:SBR  aerobic granular sludge  simultaneous nitrification and denitrification  septic tank wastewater
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